Kredrik bgandtmann bahl



Patented Oct. 21, 1919.

F. B. DAHL.-

HAND PRINTING STAMP.

` APPLICATION man APR.12. 191s.

'UNITED sTaTEs PATENT oEEIoE.

EREDRIK BRANDTMAN'N DAHL, or CHRISTIANIA, NORWAY.

HAD PRINTING-STAMP.

YSpecification of Letters Patent.

Patented oct. 21, 1919.

Application nieu April 12, 191s. serial No. 228,262.

to the accompanying drawings, and to let-V ters or figures of lreferencemarked thereon, which form a part of this specilication.

The present invention has for its object a hand-printing stamp forstamping different inscriptions, such as addresses on envelope, papers,etc. The main feature of the invention consists in the combination witha spring actuated vertically movable stamp, the lower end of whichcarries an inking pad; of a pattern band, providedl with perforations,corresponding to the several 1nscriptions, said pattern band being givena stepwise motion by each movement of the stamp.

On the drawing is illustrated a form of the invention.

Figure 1 is a section on line I-I of Fig. 2, and Fig. 2 is a side viewof the same.

The vertically movable stamp 1 with an ink pad is kept in place by meansof a spring 2 and is slidably mounted 1n frame 3. Said frame 3 alsocarries ratchet wheels 4;, gears 5, 6, toothed segments 7, guidingrollers 8 for guiding pattern band 9, drums 10 which are connected withratchet wheels 11 and gears .12. The frame 3 is yieldingly mounted inframe 13, by means of bolts 14, 15 and is kept in position by means ofsprings 16. On frame 13 is mounted the double pawl 17 engaging theratchet wheels 1 and bolt 19 ifor driving toothed segments 7.

The bolt 19 is slidably mounted in bore 21 in frame 13. A spring 23tends to pull the bolt out of its operative position in which it ismaintained by means of a pin lock or the like not shown. Two bores 21are provided, and the bolt 19 may be placed in either of them so as tocooperate with either the left hand or right hand toothed segment 7. Thedrums 10 are loosely mounted on shafts 24C journaled in frame 3, and areeach eonnected to its shaft by a spring 20, one end of which is securedto the drum and its Vof the inking pad.

other end secured to the shaft. The ratchet wheels 11 and gear wheels 12are secured to the shafts 24 and the ratchet wheels 11 are adapted tobeengaged by pawls 22 mounted on the drums 10, so as to prevent backwardrotation of the drum with respect to the shaft when the band is wound onthe drum, while it does not connect the drum and ratchet wheel when theband is wound,

off the'said drum. The apparatus manner:

When stamp 1 is pressed downward, frame 3 will band 9 is pressed againstany object placed beneath, such as a paper, a letter or the like. Thepattern stamped in the pattern band will be printed through the same bymeans During said movement of frame 3, bolt 19 acts to rotate one of thetoothed segments 7 according to which bore 21 the bolt 19 is in, and theshaft 24 rotated, thus tightening spring 20. At the same time operatesin the following pawl 17 passes along ratchet wheel 4 into a position,in which it engages the next tooth. When the pressure on stamp 1 ceases,the said stamp and frame 8 will be carried back to their originalposition by means of springs 2 and 16. It is to be understood that thespring 2 which operates the stamp is stronger than the springs whichoperate the movable frame.

During the upward movement pawl 17 will rotate ratchet wheel 4 and gear5 connected therewith, and said gear will again rotateV gears 6, mountedon. rollers 8. Hereby the pattern band is moved one step, being woundoff the left drum 10` and upon right drum 1() by means of spring 20. Byeach pressure on the stamp the said operation will take place, the bandbeing wound ofi' one drum on to the other, one address or inscriptionbeing stamped for each pressure.

The direction of movement of the pattern band may be altered by swingingthe double pawl 17 toward the left, so that its right tooth engagesratchet wheel 4. Bolt 19 is removed 'from its position and placed inhole 21, engaging toothed segment 7 on the left hand side. Further pawl22 is brought out of engagement with ratchet wheel 11 on the right handside, pawl 22 on the left hand side being simultaneously brought intoengagement.

The drums may also be so mounted that also be pressed down, so that theymay be changed, so that a number of drums with different pattern bandsmay be used.

Claims: Y 1. In handprinting stamps the combination with a verticallymovable spring actuated stamp, provided with an inking pad .at its lowerend; of a pattern band, provided with perforations, correspondin to thesev'- eral inscriptions or addresses to e stamped, said pattern bandbeing given a stepwise motion by the reciprocating movement of thestamp.

2. In handprinting stamps the combination of a vertically movable springactuated stamp, carrying an inking pad at its lower wheels withoppositely directed teeth, a

double pawl, mounted on the stationary frame cooperating therewith forrotating the pattern band drums in one or the other direction, a springactuated stamp slidably Y' mounted in the movable Jframe, the tension ofthe spring acting on said stamp being stronger than the tension of thesprings acting on the movable franrle.-

4. In a hand printing stamp, a stationary frame, va spring pressedstamp, band carrying spring drums, guide rollers for the band, pinions`on the guide rollers, a gear wheel meshing with the pinions, a slidingand tionary frame and carrying said'mechanism,

and mechanism for putting the springs of the drums under tension duringthe operation of stamping. f Y Y 5. In a hand stamp,a stationary frame,a. sliding and spring pressed frame mounted on the stationary frame, ashaft mounted in v'che siiding frame, and carrying a pinion and ratchetwheel, a spring drum loose on'the shaft, a pawl on the drum for engagingthe ratchet, a toothed segment on the sliding frame and eng-agingtheppinion of the said,

shaft, and lstops on the stationary framerfor operating` the segmentwhen the sliding flame is depressed. l l 1 In testimony that I claimtheforegoing l as my invention, I have signed my naineY in presence of twosubscribing witnesses.A

I VFREDRIK BRANDTMANN llAHL.

Witnesses:

C. NORMAN, C. FABRIorUs HANSEN.

Copies of this patent may be obtained for five cents each, by addressingthe *Commissioner of Patents,

Washington, D. C. Y

'spring pressed frame mounted in the sta- Y

